| // Copyright (C) 2017 Josh Wolfe. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Unary minus for BigInt values |
| esid: sec-numeric-types-bigint-unaryMinus |
| info: | |
| BigInt::unaryMinus (x) |
| |
| The abstract operation BigInt::unaryMinus with an argument x of BigInt type returns the result of negating x. |
| |
| Note: There is only one 0n value; -0n is the same as 0n. |
| |
| features: [BigInt] |
| ---*/ |
| |
| assert.sameValue(-0n, 0n, "-0n === 0n"); |
| assert.sameValue(-(0n), 0n, "-(0n) === 0n"); |
| assert.notSameValue(-1n, 1n, "-1n !== 1n"); |
| assert.sameValue(-(1n), -1n, "-(1n) === -1n"); |
| assert.notSameValue(-(1n), 1n, "-(1n) !== 1n"); |
| assert.sameValue(-(-1n), 1n, "-(-1n) === 1n"); |
| assert.notSameValue(-(-1n), -1n, "-(-1n) !== -1n"); |
| assert.sameValue(- - 1n, 1n, "- - 1n === 1n"); |
| assert.notSameValue(- - 1n, -1n, "- - 1n !== -1n"); |
| assert.sameValue( |
| -(0x1fffffffffffff01n), -0x1fffffffffffff01n, |
| "-(0x1fffffffffffff01n) === -0x1fffffffffffff01n"); |
| assert.notSameValue( |
| -(0x1fffffffffffff01n), 0x1fffffffffffff01n, |
| "-(0x1fffffffffffff01n) !== 0x1fffffffffffff01n"); |
| assert.notSameValue( |
| -(0x1fffffffffffff01n), -0x1fffffffffffff00n, |
| "-(0x1fffffffffffff01n) !== -0x1fffffffffffff00n"); |
